<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<form action="/roleValid">
    单价:<input type="text" name="price"><br>
    数量:<input type="text" name="count"><br>
    总价:<input type="text" name="total"><br>
    <input type="submit" value="计算">
</form>
</body>
</html>
